Abstract: The potato tubers were soaked in salicylic acid(SA)solution of 500,1 000 and 2 000 mg·L ^{- 1} and in water(ck) for 24 h,then the tubers were cultured in incubator under 25 ℃.The state of germination and the content of phenols and the activitives of PPO and POD were tested periodically.The results showed that the germination of the tubers was promoted in the treatment of 500 mg·L ^{- 1} SA,while it was inhabited in the treatment of 1 000 mg·L ^{- 1} and 2 000 mg·L ^{- 1} SA.The content of phenols increased and the activity of PPO decreased in the treatment of 500 mg·L ^{- 1} SA.However,in the treatment of 1 000 mg·L ^{- 1} and 2 000 mg·L ^{- 1} SA,the phenols content decreased and the PPO activity increased.POD activity reduced in all the treatments.

Key words: Potato, SA, Germination

CLC Number: 

• S632??